Liberian Official: Ebola Outbreak ‘Is Above The Control Of The National Government’July 31, 2014 7:18 AM

CHARLOTTE, N.C. (CBS Charlotte/AP) — A Liberian health official says the Ebola outbreak is now above the control of its government.

“Our government has declared this now as a humanitarian crisis that is above the control of the national government,” Tolbert Nyenswah, Liberia’s assistant minister of health, told CBS News.

More than 700 people have died in four western African nations during the largest Ebola outbreak ever, with over 320 known cases in Liberia alone. One American died while contracting the virus in Liberia. Two other American medical missionary workers also contracted Ebola.

“This virus, if it is not taken care of, will be a global pandemic,” Nyenswah told CBS News, calling for more international aid to help treat the sick and stop the spreading of the disease.

The Peace Corps has now temporarily evacuated 340 volunteers from Guinea, Liberia and Sierra Leone after two members were exposed to the virus. CBS News reports those two volunteers have been isolated.

This comes as two North Carolina-based missionary groups have ordered the evacuation of their non-essential personnel from Liberia after a doctor and a missionary contracted Ebola.

SIM USA President Bruce Johnson announced Tuesday that his group and Samaritan’s Purse decided on the evacuation following an upsurge in the number of Ebola cases in Liberia. Johnson said the logistics of the evacuation are being determined.

Spokesman Palmer Holt said approximately 60 employees will be evacuated. A statement from SIM says none of the evacuees is displaying any symptoms of Ebola, but all are being monitored continually.

A Texas-trained doctor and a missionary from Charlotte have contracted the disease.

Ebola-Stricken American Doctor Has Taken 'Turn for the Worse'Jul 31, 2014, 12:28 PM ETBy Sydney Lupkin

An American doctor being treated for Ebola in Liberia has “taken a slight turn for the worse overnight,” according to Samaritan’s Purse, an evangelical Christian Charity based in North Carolina.

An "experimental serum" to treat the virus arrived for the two infected Americans, but there was only enough for one person, according to Samaritan’s Purse.

Dr. Kent Brantly, who noticed his Ebola symptoms and quarantined himself last week, offered the dose to the other infected American, Dr. Nancy Writebol.

Both Brantly and Writebol remain in “stable, but grave condition” according to the statement.

“However, Dr. Brantly received a unit of blood from a 14-year-old boy who had survived Ebola because of Dr. Brantly’s care,” Franklin Graham, president of Samaritan’s Purse, said in a statement. The young boy and his family wanted to be able to help the doctor that saved his life.”

Samaritan’s Purse is currently evacuating all but the most essential members of its organization from the region because of the outbreak.

While none of those infected landed in the U.S., the chance of that occurring is a growing concern for health officials.

Ebola-Stricken American Doctor Has Taken 'Turn for the Worse'Jul 31, 2014, 12:28 PM ETBy Sydney Lupkin

An American doctor being treated for Ebola in Liberia has “taken a slight turn for the worse overnight,” according to Samaritan’s Purse, an evangelical Christian Charity based in North Carolina.

An "experimental serum" to treat the virus arrived for the two infected Americans, but there was only enough for one person, according to Samaritan’s Purse.

Dr. Kent Brantly, who noticed his Ebola symptoms and quarantined himself last week, offered the dose to the other infected American, Dr. Nancy Writebol.

Both Brantly and Writebol remain in “stable, but grave condition” according to the statement.

“However, Dr. Brantly received a unit of blood from a 14-year-old boy who had survived Ebola because of Dr. Brantly’s care,” Franklin Graham, president of Samaritan’s Purse, said in a statement. The young boy and his family wanted to be able to help the doctor that saved his life.”

Samaritan’s Purse is currently evacuating all but the most essential members of its organization from the region because of the outbreak.

While none of those infected landed in the U.S., the chance of that occurring is a growing concern for health officials.